Start the foot switch of spot welding machine, start the spot welding of upper mold and press down, which may cause finger injury and spark splashing during spot welding

Operation principle: the intelligent safety protection device of the spot welding machine is composed of a complete set of systems, including mechanical control, independent control box, multi-functional sensor, multiple adjustable anti finger probes, etc.

Protection principle: place the processed products, set the safety protection distance, fix the probe, start the equipment for processing operation; when the fingers are placed on the machined parts, the downward probe blocks and detects, the probe stops the foot switch signal immediately and the riveting machine cannot work; when the fingers leave, start the foot switch again, the probe cannot detect the obstacles; the equipment riveting machine enters immediately Conduct Rivet processing to protect the safety of operators' fingers.

The main parts include: the safety box controller is respectively connected with the foot switch signal of the driving device, the limit device and the rivet machine, and the controller sends the start signal to the foot switch according to the falling of the protective component to the preset safety position; the controller controls the driving device to move down in the sensing range according to the start signal, and waits for the falling of the protective component to the preset safety In full position, the controller sends start signal to the foot switch to enable the spot welding machine to start. The spot welding machine can only be started through the foot switch when there is no obstacle in the free falling stroke of the protective component, so as to avoid injury to the fingers of the operator and better protect the safety of the personnel.

The connector of the protection component can be customized according to the customer's requirements: to ensure that it meets the product and site requirements, multiple finger probes can meet the needs of different equipment, The riveting machine and the welding machine are applicable; the driving device and the limiting device are installed on the support frame to limit the moving range of the driving device; the protective component is movably installed on the support frame, and the part of the protective component extends to the bottom of the punch of the spot welding machine; one end of the auxiliary connector is fixedly connected with the driving device, and the other end is fixedly connected with the protective group Active connections.

The spot welding machine adopts the principle of double-sided two-point over-current welding: when working, two electrodes pressurize the workpiece to form a certain contact resistance of two layers of metal under the pressure of two electrodes, while when the welding current flows from one electrode to the other electrode, the two contact resistance points form a transient hot welding, and the welding current flows from the other electrode to the electrode along the two workpiece to form a circuit at the same time, which will not hurt or be damaged Internal structure of welder parts.

Safety design: install special protection device for spot welding machine to prevent personal injury during the working process of welding machine. The key components of the device are composed of control box, foot start and finger protection device, When the operator starts the machine and the sensor probe is released, the gravity drops to detect the surrounding workpieces; if the operator's fingers are still in the dangerous area, the probe will not fall, and the welding machine foot pedal will not start.

The safety system shall conform to sil3 safety level / Se: the design shall be standard and solid, and meet the requirements of man-machine and site. The safety products are preventive protection measures, active protection measures and life safety of operators.

Note: the safety project must be carried out by the professional safety personnel of Lihong in the early stage of equipment risk assessment, safety loop design, etc. the safety design of the same equipment is different due to the processing method and processing products (i.e. each equipment is customized), which is designed by the professional safety personnel